转基因农业定义?英文
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 07:06:13
转基因农业定义?英文
转基因农业定义?英文
转基因农业定义?英文
Definitions of Transgene on the Web:
a gene from one organism inserted into the genome of another.
pewagbiotech.org/resources/glossary/
DNA integrated into the germ line of transgenic organisms.
www.painceptor.com/page.asp
A transgene is a piece of DNA, generally coding DNA, that is introduced into cells or organisms to modify the genome.
www.genethon.fr/php/layout.php
The DNA that is to be inserted into the genome of a host cell using insertion techniques.
www.pub.ac.za/resources/glossary.html
A gene introduced into the genome of an organism by genetic manipulation in order to alter its genotype.
www.modernhumanorigins.com/t.html
gene artificially introduced into the cell or into the genome of an individual
www.genoway.com/glossary.htm
A foreign gene; typically, a gene produced by recombinant DNA techniques.
www.kumc.edu/gec/gloss.html
A gene incorporated into the germline that functions as a normal gene.
www.genpromag.com/Glossary~LETTER~T.html
Foreign DNA that is inserted experimentally into totipotent embryonic cells or into unicellular organisms.
www.nature.com/nrg/journal/v5/n4/glossary/nrg1319_glossary.html
foreign genes that are introduced into an organism by injecting the genes into newly fertilized eggs. Some of the animals that develop from the injected eggs (animals, transgenic) will carry the foreign genes in their genomes and will transmit them to their progeny.
www.madison.k12.wi.us/west/science/biotech/vocabulary.htm
The piece of DNA (the gene of interest) that is transferred to host tissue using an appropriate vector in transformation
arabidopsis.info/students/anna/glossary.html
A foreign new gene introduced into a cell.
herkules.oulu.fi/isbn9514255429/html/g211.html
Gene from a dissimilar organism or an artificially constructed gene added by methods of molecular biology to another organism.
genetically modified agriculture
What are Genetically Modified (GM) Foods?
Although "biotechnology" and "genetic modification" commonly are used interchangeably, GM is a special set of technol...
全部展开
genetically modified agriculture
What are Genetically Modified (GM) Foods?
Although "biotechnology" and "genetic modification" commonly are used interchangeably, GM is a special set of technologies that alter the genetic makeup of such living organisms as animals, plants, or bacteria. Biotechnology, a more general term, refers to using living organisms or their components, such as enzymes, to make products that include wine, cheese, beer, and yogurt.
Combining genes from different organisms is known as recombinant DNA technology, and the resulting organism is said to be "genetically modified," "genetically engineered," or "transgenic." GM products (current or in the pipeline) include medicines and vaccines, foods and food ingredients, feeds, and fibers.
Locating genes for important traits—such as those conferring insect resistance or desired nutrients—is one of the most limiting steps in the process. However, genome sequencing and discovery programs for hundreds of different organisms are generating detailed maps along with data-analyzing technologies to understand and use them.
In 2003, about 167 million acres (67.7 million hectares) grown by 7 million farmers in 18 countries were planted with transgenic crops, the principal ones being herbicide- and insecticide-resistant soybeans, corn, cotton, and canola. Other crops grown commercially or field-tested are a sweet potato resistant to a virus that could decimate most of the African harvest, rice with increased iron and vitamins that may alleviate chronic malnutrition in Asian countries, and a variety of plants able to survive weather extremes.
On the horizon are bananas that produce human vaccines against infectious diseases such as hepatitis B; fish that mature more quickly; fruit and nut trees that yield years earlier, and plants that produce new plastics with unique properties.
In 2003, countries that grew 99% of the global transgenic crops were the United States (63%), Argentina (21%), Canada (6%), Brazil (4%), and China (4%), and South Africa (1%). Although growth is expected to plateau in industrialized countries, it is increasing in developing countries. The next decade will see exponential progress in GM product development as researchers gain increasing and unprecedented access to genomic resources that are applicable to organisms beyond the scope of individual projects.
Technologies for genetically modifying (GM) foods offer dramatic promise for meeting some areas of greatest challenge for the 21st century. Like all new technologies, they also poses some risks, both known and unknown. Controversies surrounding GM foods and crops commonly focus on human and environmental safety, labeling and consumer choice, intellectual property rights, ethics, food security, poverty reduction, and environmental conservation (see below for a summary of "GM Foods: Benefits and Controversies").
--------------------------------------------------------------------------------
收起